The Smerio blog

Messaging, explained.

Practical guides to choosing channels, building integrations and launching RCS.

3 guides

Pricing and strategy

WhatsApp service message pricing 2026 vs RCS

What changes on October 1, 2026, what WhatsApp service replies cost, and when RCS conversation pricing can help businesses reduce channel dependence.

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Fundamentals

RCS and SMS fallback, explained

Compare the same message in RCS, SMS and MMS, then learn how to design a fallback path without sending duplicate notifications.

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Onboarding

From a test sender to production

Understand the three milestones of an RCS launch: a visual preview, messages with invited test devices, and brand and network approval.

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